Lens-securing device.



G. LOWENSTEIN.

LENS SECURING DEVICE.

APPLICATION FILED SEPT. 15. 1913.

1,148,105. Patented July 27, 1915.

IN 5 IV TOR A T TOR/V5 Y COLUMBIA FMNOGRAPH 120-. WASHINGTON D c UNITED STATES PATENT OFFICE- v GOTHARD LOWENSTEIN, or NEW Yonmn.

nnivs-snounrne DEVICE.

To all whom it may concern. I

Be it known that I, GoTrrARn LownNsrnrN, a citizen of the United States, residing in the borough of Brooklyn, in the city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Lens-Securing Devices, of which the following is a full, clear, and eX- act description, reference being had to the accompanying drawings, forming a part of 7 this specification.

This invention relates todevices for removably connecting lenses to eye glass or spectacle frames, and its object is to provide novel and improved arrangements whereby a lens can bereadily attached to an eye, glass or spectacle frame and can also be readily detached from the same without the neces sity of using any tools.

Devices for temporarily connecting lenses to eye glass or spectacle frames in such a manner that a broken lens can be easily and instantly replaced, are not new, and some arrangements relating to such devices have been described and claimed by me in three patent applications for detachable lens mounting, means for securing lens 1nounting devices, and lens mounting devices, simultaneously filed herewith; the one forming the object of the present invention however, differs from the onesshown in said applications, inasmuch as the lens head mounted on the lens is attached to the stud endwise; the resulting arrangements being (simpler and easier to manufacture, and being also more readily set in place.

Referring to the drawings, Figure 1 is a plan view of a locking arrangement, in which a cam member is used to exert the llocking action, securing the lens to the stud; Fig. 2 is a detail plan view of the stud and locking member used in said arrangement; Fig. 3 is a front view in elevation of the same; Fig. 4 is a plan view of the lens head used in connection with said arrangement; Fig. 5 is a front view in elevation of a stud and locking member slightly different from the one illustrated in Fig. 3; Fig. 6 is a plan View of a lens head which [may be used in connection with the same; Fig. 7 is a plan view of a different style of lens head; Fig. 8 is a front view of a stud with looking member adapted to be used in connection with the same; Fig. 9 is a plan [view of a lens head similar to the one illustrated in Fig. 6; Fig. 10 is a fragmentary Specification r Letters Ratent. r Paten J ly 7, 5 Application filedjsepteniber 15, 1913. Serial No, 789,890. V i

plan view ofa different style of stud and. locking memberada-pted to beused'in connection with the same; and Fig. -11 is a front view-in elevation of the same.

"Referring to Figs. 1 to 4, 2'0 designates a stud provided with a holding plate 21', which has longitudinal slots 22; around the neck 23 of said stud is rotatably mounted a cam member 24, having an operating handle 25. '26 designates a lens head secured to the 'lens any suitable manner, saidlens head comprising a lens head plate 27, provided with hook shaped projections 28,29, adapted to be inserted through slots 22' of plate 21. Referring to Fig. 1, it is seen that when said projections 28, 29 areinserted through slots 22, after cam member 24 is rotated so as to cause its'cam portion to act against the rear of projection 29, the lens head will be moved in a tangential direction in relation to plate 21, and the hook portion of projections 28.

29, will be caused to overlap plate 21 and therefore to be firmly retained thereby.

In Figs. 5 and'6, I illustrate a similar arrange'ment in which'the stud plate 30 is provided withonly two slots each having an enlarged portion 31 and a narrow portion 32; a lens head 33 is provided with two lugs 34, 3 5, which have a stem. 36, 37 narrower than the head. -By'inserting the head of lugs 34, 35 through enlarged portionsof the slots 31, and by moving-around cammem ber 38so as to act against the rear of pro jec'tion 35, the lens will be moved tangentially by plate 30, so as to cause the narrow parts 36, 37 of lugs 34, 35 to enter through narrow part 32 of the slots; the lens will therefore be securely held in place.

In Figs. 7 and 8, I illustrate a different arrangement in which 40 designates a stud plate having two openings 41, provided with a pivoted locking member 42, having two end fingers 43; 44 is a lens head having a plate 45, the two. ends of which are bent outward to form hooked portions 46, 47 adapted to enter through openings 41. It is obvious that if said hooked portions are inserted through openings 41 and then pivoted member 42 is moved around, fingers 43 will engage hooked portions 46, 47 and will retain the lens in position. To disengage the lensit will be sufiicient to rotate locking member 42 in the opposite direction, so as to clear hooked portions 46, 47, when the lens can be freely detached from the stud' A further arrangement is illustrated in Figs. 9 toll, which may beapplied in those studs having the neck su'tliciently long, the length of the neck being "dependent on the pupillary distance of theeyes of the wearer.

. In said arrangement, 5Qdesignates a stud' havlng a neck 51 and a stud plate 52, prosimilar tothose entering-into the arrangement shown in Figs. 5 and 6, with the difference that in the present arrangement a cam acting member in the form of aring 61 is slidably mounted on neck 51, so that when the lens head projections. have been inserted through the wide part of theslots 53, and said ring 61 is moved outwardly, the same presses against the rear of projection 56, and will cause stems 57', .58, to'

enter through the inner part 54 of the slots;

the lens will thus be secured in position in a manner somewhat similar to that shown in Figs. 5 and 6. 4

The .arrangements described permit of using lens heads and lens holding studs which are quite similar to those applied in the usual'construction of eye glasses or spectacles, and are moreover possessed of the advantage of being exceedingly simple to manufacture and to operate. It is obvious that the same can be modified to a certain extent without departing from the substance of my invention and from the scope of the appended claims.

I claim: .7

1. In a device of the class described, the combination of a lens, a lens holding stud provided with a plate, against which the edge of said lens rests, a lens'ho'ad mounted on sald lens, and means for detachably connecting said lens head to said plate.

, 2. In a device of the class described, the combination of a lens, a lens holding stud provided with a plate against which the edge of said lens rests, a lens head mounted on said lens having parts adapted to interlock with said plate, and means for securing said lens head to said plate.

I 3. In a device of the class described, the combination of a lens, a lens holding stud provided with a slotted plate against which the edge of said lens rests, a lens head mounted on said lens having projections adapted to interlock with the slots of said plate, and means mounted on said stud for securing said lens head to said plate.

4:. In a device of the class described, the combination of a lens, a lensholding stud provided with a slotted plate against which the edge of said lens rests, a lens head mounted on said lens having outward projections adapted to interlock with the slots of said plate, and a cam member mounted on said stud securing said lens head to said plate.

5. In a device of the class described, the combination of a lens, a lens holding stud provided with a slotted plate against which the edge of said lens. rests, a lens head mounted on said lens having outward projections adapted to interlock with the slots of said plate, and a cam member rotatably mounted on said'stud securing said lens to said plate.

GOTHARD LOWENSTEIN.

VVitnesses-z- A. ABELOFF, I J. 'OBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

